import java.io.File;

/**
 * Creater with IntelliJ IDEA.
 * Description:
 * User: 86152
 * Dae: 2022-08-02
 * Time: 21:05
 */
public class demo2 {
    public static void main(String[] args) {
        File file1 = new File("dir");
        System.out.println(file1.isDirectory());
        file1.mkdir();
        System.out.println(file1.isDirectory());
    }
}
